<!DOCTYPE html>
<html lang="zh">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no"/>
	<style type="text/css">
		body, html{
			width:100%;
			height:100%;
			margin:0;
			font-family:"微软雅黑", monospace;
		}
		#allmap{
			width:100%;
			height:500px;
		}
		#r-result{
			width:100%;
			margin-top:5px;
		}
		p{
			margin:5px;
			font-size:14px;
		}
	</style>
	<script type="text/javascript" src="//api.map.baidu.com/api?v=2.0&ak=h4UxXbr5o3e7dQXd1tYU4nTunX4sH9UM"></script>
	<title>添加/删除工具条、比例尺控件</title>
</head>
<body>
<div id="allmap"></div>
<div id="r-result">
	<input type="button" onclick="add_control();" value="添加"/>
	<input type="button" onclick="delete_control();" value="删除"/>
</div>
<p>在地图的左上、右上分别展示完整、缩略样式的缩放平移控件；同时在地图的左上方展示比例尺控件，点击按钮查看效果</p>
</body>
</html>
<script type="text/javascript">
	// 百度地图API功能
	var map = new BMap.Map("allmap");
	map.centerAndZoom(new BMap.Point(116.404,39.915),11);
	var top_left_control = new BMap.ScaleControl({anchor:BMAP_ANCHOR_TOP_LEFT});// 左上角，添加比例尺
	var top_left_navigation = new BMap.NavigationControl();  //左上角，添加默认缩放平移控件
	var top_right_navigation = new BMap.NavigationControl({anchor:BMAP_ANCHOR_TOP_RIGHT,type:BMAP_NAVIGATION_CONTROL_SMALL}); //右上角，仅包含平移和缩放按钮
	/*缩放控件type有四种类型:
	BMAP_NAVIGATION_CONTROL_SMALL：仅包含平移和缩放按钮；BMAP_NAVIGATION_CONTROL_PAN:仅包含平移按钮；BMAP_NAVIGATION_CONTROL_ZOOM：仅包含缩放按钮*/

	//添加控件和比例尺
	function add_control(){
		map.addControl(top_left_control);
		map.addControl(top_left_navigation);
		map.addControl(top_right_navigation);
	}
	//移除控件和比例尺
	function delete_control(){
		map.removeControl(top_left_control);
		map.removeControl(top_left_navigation);
		map.removeControl(top_right_navigation);
	}
</script>
